Webinars

Sun Nuclear hosts live webinars as part of our commitment to Radiation Oncology education and improvement. Presented by clinical users and our own product experts, sessions often feature professional or content independent of Sun Nuclear solutions.

QA & Dosimetry Symposium

This bi-annual, educational event for Medical Physicists and Dosimetrists gathers industry leaders and clinicians to discuss important topics in Quality Management for Radiation Oncology. The only event of its kind, our next QADS is in 2020.

Publications

An ever-growing body of evidence exists on the application of Sun Nuclear solutions to shape Quality Management and enhance Patient Safety. We’ve collected key studies and organized by product for your convenience.

Who We Are

Sun Nuclear serves customers worldwide working in diverse fields with a common focus: fighting cancer. Our mission: To Enable Healthier Lives by Improving the Avoidance, Detection and Treatment of Cancer.

News

Find the latest news from Sun Nuclear, including announcements on products, partnerships, events and educational offerings.

Careers

Join our team, and you’ll work among the brightest minds dedicated to making a genuine difference. Offices in Melbourne, Florida, Madison, Wisconsin, and Frankfurt, Germany – and remote opportunities around the world.

Contact Us

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ArcCHECK®&3DVH®

ArcCHECK

3DVH

Respiratory MotionSim

Specs

Resources

ArcCHECK®&3DVH®

The Benchmark for 3D VMAT QA

The Benchmark for 3D VMAT QA

The ArcCHECK is the world’s most selected independent 4D measurement array. Simply connect the single cable which supplies both power and data, and start to measure. No background measurements, no warm-up, no separate inclinometers, no additional hardware rotisseries. It’s that simple, and that powerful.

Volumetric Measurement QA for Patient Plan, Dose and Machine Testing

ArcCHECK is the only true 4D array specifically designed for QA of today’s modern rotational deliveries. At its heart are over 1300 SunPoint® Diode Detectors providing consistent and highly sensitive measurements for all gantry angles, with no additional hardware required. Independent absolute dose measurements enable the gold standard for stringent and efficient patient plan and machine QA testing.

See the Entire Picture

An Ideal Geometry

Phantoms are ideally shaped like a patient. The cylindrical design of ArcCHECK intentionally simulates patient geometry to better match reality.

ArcCHECK detectors are always facing the delivery beam regardless of gantry angle. The detector geometry relative to the BEV remains constant. Detection of very small gantry angle errors is possible. In contrast, when a 2D array is irradiated obliquely, the geometry collapses to 1D. Even when there is no detector shadowing effect, significant information is lost on a 2D array, and errors up to 10° are missed 75% of the time.

With ArcCHECK, gantry angle, leaf-end position, absolute dose, and time (4D) are measured and correlated to identify sources of error. Dose accuracy is improved and errors can be traced to the treatment planning system, the delivery system, or the imaging system.

What You See with a 2D Array

2D Array Measurement

An inherent limitation of 2D arrays is an inability to capture all of the dose information for rotational deliveries.

What You See with ArcCHECK

ArcCHECK Measurement

ArcCHECK displays BEV dose distribution throughout the entire arc delivery. More data is available to perform a more thorough QA analysis.

Interior Measurements

Measuring completely around the isocenter in a uniform manner for each angle is a more stringent measurement than a simple composite dose at the isocenter. Errors visible in the isocenter are also visible in the surrounding dose measurements, but in more detail.

ArcCHECK measures entry and exit dose for every angle. For each beam angle, ArcCHECK measures high dose regions at the entrance and low dose regions at the exit, detecting potential delivery and TPS modeling errors for both high and low dose levels. For those who would like to measure the dose at isocenter or elsewhere within the cavity, Sun Nuclear offers the versatile MultiPlug and CavityPlug with detector insert.

Hounsfield Unit (HU) conversion testing

Tissue equivalent inserts:

Muscle, Bone, Lung, Adipose, Titanium

Dose in up to 25 locations

Film cassette insert

Bezel angle indicator for rotation within cavity

Precision milled detector holder included

Solid insert included to achieve solid cavity

Precision fitted to ArcCHECK cavity

Measure dose in cavity center

Precision milled detector holder included

Solid insert included to achieve solid cavity

Helical Detector Grid

Detectors are arranged on a HeliGrid™ which increases the sampling rate and reduces BEV detector overlap and shadowing.

An ArcCHECK 10 x 10 cm2 area contains 221 detectors; equivalent to the detector density in a MapCHECK® 2

Entrance and exit dose are measured, effectively doubling the detector density in the measurement field

VMAT / Control Point Analysis

Individual control points and user-defined arc sections can be analyzed for a full arc or sub arc. A 360° presentation of pass, low, and high dose summary for the defined control point range and sub arcs is presented.

MLC Analysis

Evaluate the difference between the planned and delivered MLC pattern, and identify leaves that may indicate required service. Additional machine QA tests are also included.

Sun Nuclear’s 3DVH software offers a unique quality assurance tool for patient specific IMRT QA. Testing was conducted for IMRT plans where we introduced known errors in both absolute dose and geometry of the delivered fields. These differences were accurately detected and reported by 3DVH and gave us a high degree of confidence in the system’s ability to detect treatment delivery errors. The system also revealed that where beams may “pass” in a 2D analysis, regions of failure and match were more clearly revealed in a 3D analysis.